Derivation of mechanistic critical heat flux model for water based on flow instabilities

Autor:	Soon Heung Chang, Yun Il Kim, Won-Pil Baek
Rok vydání:	1996
Předmět:	Subcooling Mass flux Materials science Critical heat flux General Chemical Engineering Flow (psychology) Water cooling Thermodynamics Two-phase flow Enthalpy of vaporization Condensed Matter Physics Instability Atomic and Molecular Physics and Optics
Zdroj:	International Communications in Heat and Mass Transfer. 23:1109-1119
ISSN:	0735-1933
DOI:	10.1016/s0735-1933(96)00092-9
Popis:	The critical heat flux (CHF) is a major parameter which determines the cooling performance and therefore the prediction of CHF with accuracy is of importance for the design and safety analysis of nuclear power plant (NPP). In this study, the mechanistic CHF model and correlation for water are derived based on flow excursion (or Ledinegg instability) criterion and the simplified two-phase homogeneous model. The relationship between CHF for the water and the principal parameters such as mass flux, heat of vaporization, heated length-to-diameter ratio, vapor-liquid density ratio and inlet subcooling is derived on the developed correlation. The developed CHF correlation predicts very well at the applicable ranges, 1
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5552fbc6857ae3cde6ff2c3288ea6989 https://doi.org/10.1016/s0735-1933(96)00092-9 Zobrazit plný text záznamu Full Text from ScienceDirect